Before you can use the Curator Framework API, you need to add some dependencies to your "pom.xml" file.
Here's the minimal dependencies needed in order for the following examples to work.

<dependency>
    <groupId>org.apache.curator</groupId>
    <artifactId>curator-framework</artifactId>
    <version>4.1.0</version>
</dependency>

<dependency>
    <groupId>org.apache.curator</groupId>
    <artifactId>curator-client</artifactId>
    <version>4.1.0</version>
</dependency>